@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
    /* Aligned with jbcom.github.io design system */
    --bg-default: #0a0f1a;
    --bg-paper: #111827;
    --bg-elevated: #1e293b;
    --primary: #06b6d4;
    --primary-light: #22d3ee;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-disabled: #475569;
    --border: #1e293b;
    
    /* Legacy aliases for compatibility */
    --jb-deep-slate: #0a0f1a;
    --jb-cyan: #06b6d4;
    --jb-teal: #14b8a6;
    --jb-glass-bg: var(--bg-paper);
    --jb-glass-border: var(--border);
    --jb-font-heading: 'Space Grotesk', sans-serif;
    --jb-font-body: 'Inter', sans-serif;
    --jb-font-mono: 'JetBrains Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body { 
    background: var(--bg-default); 
    color: var(--text-primary);
    overflow: hidden; 
    font-family: var(--jb-font-body); 
}

#root { width: 100vw; height: 100vh; }

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 2rem;
    background: linear-gradient(180deg, rgba(10, 15, 26, 0.9) 0%, transparent 100%);
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(4px);
}

.overlay h1 { 
    color: var(--text-primary); 
    font-family: var(--jb-font-heading);
    font-size: 1.25rem; 
    letter-spacing: 0.15em;
    font-weight: 700;
    text-transform: uppercase;
}

.overlay h1 span {
    color: var(--primary);
}

.overlay a { 
    color: var(--text-secondary); 
    text-decoration: none; 
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.overlay a:hover { color: var(--primary); }

.feature-list {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    background: var(--bg-paper);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    z-index: 100;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
    max-width: 300px;
}

.feature-list h3 { 
    color: var(--text-primary); 
    font-family: var(--jb-font-heading);
    margin-bottom: 1rem; 
    font-size: 1.1rem;
    font-weight: 600;
}

.feature-list ul { list-style: none; }

.feature-list li { 
    padding: 0.4rem 0; 
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.feature-list li::before { 
    content: '→'; 
    color: var(--primary);
    font-weight: bold;
}

code {
    font-family: var(--jb-font-mono);
    background: rgba(0, 0, 0, 0.3);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    color: var(--primary);
    font-size: 0.85em;
}

/* Specific to demo content placeholders */
.demo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: radial-gradient(circle at center, var(--bg-elevated) 0%, var(--bg-default) 100%);
}

.demo-placeholder-content {
    text-align: center;
    color: var(--text-secondary);
    max-width: 450px;
    padding: 2rem;
}

.demo-icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 20px rgba(6, 182, 212, 0.3));
}

.demo-title {
    color: var(--text-primary);
    font-family: var(--jb-font-heading);
    margin-bottom: 1rem;
    font-size: 2rem;
    font-weight: 700;
}

.demo-description {
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.demo-code {
    background: var(--bg-paper);
    padding: 0.75rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    display: inline-block;
}

.showcase-iframe {
    width: 100%;
    height: 500px;
    border: 1px solid var(--border);
    border-radius: 12px;
    margin: 1rem 0;
}